Breath life into

To breathe life into something is to energize or activate a particular object or endeavor.  ('Breathe new life' is also used.)   

“The sculptor breathe life into his artwork.”

Break the ice

To break the ice is to say or do something to get over initial embarrassment or shyness when meeting someone for the first time.  

”Talking about the weather is a safe way to break the ice.”

Break every rule in the book

A person who exhibits unacceptable behavior is said to break every rule in the book.  

“Your son thinks you broke every rule in the book when you abandoned him in the orphanage.”

Break a leg

  
Use this expression to wish someone good luck.   

“I know you have a job interview tomorrow, so break a leg!”

Bread and butter

Bread and butter refers to means of support or livelihood.   

“Writing is my bread and butter. What’s yours?”

Brand new

Something is brand-new if it is absolutely new.  

“I used my year-end bonus to buy a brand-new car!”